AC4400CW. In TSW 2020 when your DP is working you have power AND brake application to the DP unit. But in TSW2 I'm able to set DP unit easily with the Bank Comm (lead unit) and I have power at the DP but the brake don't work. It should be pumping air so it take less time having 90psi at the rear end when you have a long train. Somebody have that working?